102555031 has 4 divisors (see below), whose sum is σ = 102608632. Its totient is φ = 102501432.

The previous prime is 102555023. The next prime is 102555077. The reversal of 102555031 is 130555201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102555031 - 2³ = 102555023 is a prime.

It is a super-2 number, since 2×102555031² = 21035068766821922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102554993 and 102555011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102555001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23820 + ... + 27793.

It is an arithmetic number, because the mean of its divisors is an integer number (25652158).

Almost surely, 2^102555031 is an apocalyptic number.

102555031 is a deficient number, since it is larger than the sum of its proper divisors (53601).

102555031 is an equidigital number, since it uses as much as digits as its factorization.

102555031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53600.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 102555031 is about 10126.9457883411. The cubic root of 102555031 is about 468.0788197900.

The spelling of 102555031 in words is "one hundred two million, five hundred fifty-five thousand, thirty-one".